BroadRock Renewables LLC, in collaboration with DCO Energy, operates combined cycle electric generating plants at the Central Landfill in Johnston, Rhode Island, and Olinda Alpha Landfill in Brea, California. The Rhode Island plant is the second-largest landfill-gas-to-electricity facility in the United States. The facility generates 33.4 MW of power and saves 2.1 trillion Btu annually from the landfill gas that would otherwise be flared. The California plant is the third-largest landfill-gas-to-electricity facility in the United States. The facility generates 32.5 MW of power and saves 2.2 trillion Btu annually from the landfill gas that would otherwise be flared.